The State of Global Air 2017, a report produced jointly by the Boston-based Health Effects Institute and the Institute for Health Metrics and Evaluation in Seattle, finds that more than 90% of the world’s population lives in areas with unhealthy air. The Health Effects Institute will update the findings annually to highlight the extent to which air pollution affects public health, as well as tracking progress toward cleaner air.

The Global Disease Report is a unique compilation of health data from 195 countries over a 25 year period, from 1990 to 2015, facilitating comparison of health data across populations, age groups and over a span of time.

Photo: PTI